Wireless Headaches

Last Christmas I purchased a Linksys Wireless G router. I had a devil of a time getting it to work with my modem, but after a few hours of working with it, I succeeded. It's been working flawlessly until recently. Neither my wife nor my son can access the router anymore. They've been connecting flawlessly since I set it up last year, but within the past month they've both had difficulty. My wife has spotty access, and my son can't connect at all. I've been working on reconnecting them all week, with no luck. On top of that, the keyboard on my computer, which is the host, went out. I'm wondering if we had a lightning strike or power surge which jinxed my equipment. Still, I have all my equipment plugged into a UPS/surge protector. Eventually, I'll get it all straightened out; probably just in time to disconnect it all and move into the house.